Lamp



July 15, 1930. F BAMFORD 1,770,724

LAMP

Filed sept, 4. 192s Z4 INVENTOR Patented July` 15, 1930 UNITED STATESPATENT OFFICE FRANK L. BAMFOBD, F DETROIT, MICHIGAN, ASSIGNOR TO C. M.HALL LAMP COM- PANY, OF DETROIT, MICHIGAN, A; CORPORATION 0F MICHIGANLAMP l Application led September 4, 1928. Serial No. 303,780.

This invention relates to lamps .and has particular reference lto avehicle lamp.

Anobject of this invention is to provide means for anchoring anelectrical conductor I directly to the reflector of a lamp and forforming an electrical connection between the electrical conductor andthe lamp bulb carried by the reflector.

A further object o f this invention isI to simplify the connectionlbetween 'the electrivcal conductor and the lamp bulb of the lamp and toproduce a simple and `efficient structure which may be economicallymanufactured o n a commercial scale.

Other objects and advantages of this invention will become more apparentas the following description proceeds, particularly when reference ishad to `the accompanying drawings wherein:

2o Figure 1 is an elevational view, partly in section, of a vehicle lampshowing the invention applied to the same. v

Figure 2 is a fragmentary perspective view of a portion of the reflectorshown in Fig- 2,5 ure 1.` l Figure 3 1s a-perspective v1ewof the conconductor for supplying electric current to the lamp bulb 13; Asillustrated, the casing lO-wmay be provided with an opening 14 throughwhich the conductor 12 is adapted to enter the casing.

. The reflector 11 is provided substantially centrally with'an opening20 and this opening is surrounded by a rearwardly extending fla-ngedesignated generally by the refer ence character 21. The flange 21serves a double, purpose, being adapted to form a socket for receivingthe lamp bulb 13 and being adapted further to form an anchorage theflange l21 is of an uneven contour being provided with the extendedportions 22 provided with bayonet slots 23 for receiving the pins 24carried by the base of the lamp bulb 13. Adjacent the ends of thebayonet slots 23 the reflector 11 is provided with the cutaway 4portions25 to permit the passage through the opening 20 of the pins 24 thuspermitting alocking of the pins'24 in the bayonet slots 23.' In additionto the extended portions 22, the flange 21 includes the re1- ativelyshort portions 26 provided with the radially outwardly extending lugs 27adapted to lock the anchorage clip to the reflector 11 in a mannerhereinafter to be described.. As illustrated, the lugs 27 may be formedby stamping out portions of the flange 21 and by bending these portions,laterally In Figure 3, there is illustrated a clip designated generallyby the reference character 30, this clip being-adapted to bc locked tothe reflector 11 by the lugs 27. The clip 30 includes an annular portion31 formed f cf resilient materialland bowed as clearly illustrated inFigures 1 and 4 of the drawing, for' a purpose hereinafter to be morefully described. The internal diameter o f the annular portion 31 of theclip 30 is sufliciently great to permit the clip to be slipped over 'thcflange 21 on the reflector 11 and in order to permit a passage oftheportion 31. past the lugs 27, there are provided the diametricallyopposed cut away portions 32 in the annular portion 31, through whichthe lugs 27may pass. Thus when the cut away portions 32 are aligned withthe lugs 27, the clip 30 may lie-'slipped on the flange 21 to a`osition'betwcen the lugs-27 and the body o the reflector 11 after whichthe clip 30 maybe rotated to move the cut away portions 32 out ofvalignment with the lugs 27,'so that the lugs 27 will prevent an outward`movement of the clip 30 away from the'reflector 11.

In order to prevent a. rotation of the clip on the flange 21 after thesame has been poportion 31 the ears form oppositely directed' camsurfaces 34 over which the lugs 27 will slide relatively easily vtopositions between the ears 33; Y n

As illustrated the ears 33 are formed 1n the high portions of theannular portion 31 so that the resiliency of the portion 31 will tend tohold the ears 33 in engagement with the lugs 27. In order therefore torelease the lugs 27 from engagement with the ears 33, it is necessaryto' slightly flatten the clip 30 by a flexing movement of' the same,whereby the ears 33 will be moved out of the path of travel of the lugs27 to permit a rotation of the clip 30 to again align the cut awayportions 32 with the lu s 27.

For rigidly securing t e conductors 12 to the clip 30, the annularportion 31 of the vclip is provided with the laterally extending lip 35and the conductor is provided on its end with a metallic terminal 36adapted to be secured to the lip 35 as at 37. The connection 37 mayeither be a screw connection orV a rivet and the conductor 12 may beinsulated from the lip 35 as by the insulated pads 38 and 39.

For forming an electrical connection between the conductors 12 and thebulb 13, there is provided a contact finger designated generally by thereference character 45. This contact finger comprises the body portion46adapted to be clamped between the terminal 36 and the insulation 39,whereby the same is electrically connected to the conductor 12. The bodyportion 46 of the finger 45 is bent upwardly as at 47 and then forwardlyas at 48 to provide the extended portion 49 loverlyin the annularportion 31 of the clip 30. he finger 45 is formed of resilient metalwhereby the end 49 will be resiliently held in contact with the contact50 of the bulb 13 wheny the latteris locked in the socket by engagementofthe pins 24V-in the bayonet slots 23.

From the above it is believed that the manner in which the structureembodying the inventive idea functions, will be readily apparent. Theconductor 12 is adapted to be secured to the clip 30 by virtue of theconnection 37 which may be either a rivet or a small bolt. The conductor12 will thus be electrically connected to the contact finger 45 and willbe insulated from the annular portion 31 of the clip 30. The clip 30 maybe f positioned on the flange 21 and in back off' the lugs 27 by firstaligning the cut away (iii orton 32 of the clip with the lugs 27 and ythenvmoving the clip 30 inwardly to the tative movement to disengage thelugs 27 from the ears 33 and to then align'the lugs V27 with the cutaway vportions 32. The eX- tension 49 of the Contact finger 45 overlyingthe opening 20 will be in a position to engage the contact 50 on thebulb 13 and the resiliency of the finger 45 will tend to hold itsextension 49 in engagement with the Contact 50. Thus the conductor 12will be firmly locked to the reflector 11, while an electricalconnection will be formed between the conductor 12 and the lamp bulb 13.

lVhile one form of the inventive idea has been disclosed withconsiderable detail, it is to be clearly understood that the descriptionis forthe purposes of illustration only.

The right is therefore reserved to make such changes in the details ofconstruction and arrangement of parts as will fall within the purview ofthe. attached claims.

lVhat I claim as my invention is: v 1. In a vehicle lamp,'a reflectorhaving a rearwardly extending flange, a clip sleeved upon the flange foranchoring an electrical conductorto said reflector, and means p'ro-Jecting laterally vfrom the flange for holding the clip thereon.

2. In avehicle lamp, a reflector having an opening, a flange formed onsaid reflector around said opening, said flange forming a socket forreceiving a lamp bulb, and a clip for anchoring an electrical conductorto said reflector, said clip being adapted for detachable lockingengagement with said yflange. 3. In a Vehicle lamp, a reflector having4a socket for receiving a lamp bulb, and a clip for anchoring anelectrical conductor to said socket, said clip comprising an annularmemadapted to be locked thereto.

4. In a vehicle lamp, a reflector having an` opening and a flangesurrounding said opening, said flange forming a socket for receiving alamp bulb, radially outwardly extending lugs formed onsaid flange, and aclip for anchoring an electrical conductor to said socket, said clipincluding an annular member adapted to be locked under said lugs.

5. In a vehicle lamp,` a reflector having an opening and a flangesurrounding saidk open ing, said flange forming a socket for receiving alamp bulb, radially outwardly extending lugs formed on said flange, anda clip for anchoring an electrical conductor to` said socket, said clipincluding an annular member adapted to be locked under said lugs, saidannular memberhaving cut away portions When the clip 30 is inv forreceiving said lugs whereby 'said annular membermay be positioned undersaid lugs.`

6. In a vehicle lamp, a reflector having a fiange forming a socket forreceivm a lamp bulb, radially outwardly extending ugs carried by saidflange, and a clip for anchoring an electrical conductor to saidlange,said clip comprising an annular member having 'cut away portions forreceiving said lugs whereb said annular member may be positione on saidfiange beyond said lugs, said clip being adapted tov be rotated on saidian e to move said cut away portions out fiange. l Y v7. In a vehiclelamp, a reector `having a flange' forming a socket for receivin a lampbulb, radially outwardly extending ugs carried by said iange, and a clipfor anchoring an electrical conductor to said flange, said clipcomprising an annular member having cut away portions for receiving saidlugs whereby said annular member may be positioned on said flange beyondsaid lugs, said clip 'being' adapted to be rotated on said flange tomove said cut away portions o ut of alignment with said lugs, and meansfor locking said clip against rotation on' said flange, said lmeansincluding ears struck from said annular member for engagement with lsaidlugs.

8.`1In-a vehicle lamp, a reflector having a` flange forming a socket-for receivin a lamp bulb, radially outwardly extending u s car-y riedby said flange, and a clip for anc o'ring an electrical conductor tosaid flange, said clip comprising an annular .member having cut awayportions for receiving said lugs whereby said annular member may be positioned on said flan e beyond said lugs, said clipbeing adapte to berotated on said Bange to move said cut away portions out of alignmentwith said lugs, and emeans for locking said clip against rotation onsaid flange, said means including ears struck from said annular memberfor engagement with said lugs, said annular member being resilient andbeing bowed whereby the same may be iiexed to move said ears out ofengagement with said lugs.

9. In a vehicle lamp, a reflector having a socket for receiving a lampbulb, and means for detachably securing an electrical conductor to saidsocket and for forming'an electrical connection between the conductorand lamp bulb, said means comprising a clip sleeved on said socket, saidclip and socket having portions adapted for interlocking engagement u ona predetermined rotative movement oi said clip on said socket.

10.' In a vehicle lamp, a reflector having a socket for receiving a lampbulb, and nieansfor detachably securing an electrical conductor tosaidsocket and for forming an electrical connection between theconducton andlamp bulb, said means includin a clip detachably engageable with saidsoc et and a resilient contact finger arranged diametrically of saidclipfor engagement with thelamp bulb.

11. In a vehicle lamp, the combination with a lamp socket for receivinga lamp bulb, and` an electrical conductor, of a clip fixed to saidconductor and detachably connected to said lamp socket for anchoringsaid conductor to said lamp socket and for forming an electricalconnection between the electrical conductor and the lamp bulb.

12. In a vehicle lamp, a lamp socket, a lug formed on the outerperiphery of said socket, and a clip adapted for locking engagement withsaid lug for anchoring an electrical conductor to said socket.

13. In a vehicle lamp, a lamp socket, lugsformed on the outer peripheryof said socket, and a resilient clip surrounding said socket and adaptedto be sprung under said lugs for anchoring an electricalconductor tosaid socket. y f

14. In avehicle lamp, a reiector'having ,an opening for receiving aportion of a lamp bulb and provided about the opening with a flange thatforms a socket for receiving the portion aforesaid `of the bulb, thatforms a seat for an electrical conductor attaching clip,

and that has means cooperating with the re- 1G. 'In a vehicle lamp, areflector having an opening for receivinga portion of a lamp bulb-andprovided about the opening withr means for anchoring the bulb in theopening' and .having other means for* anchoring an electrical terminalattaching clip upon the 're- Hector adjacent the opening. y

17. In a vehicle lamp, a reflector having an opening for'receiving aportion of a lamp bulb and provided about the openingwithy means'forembracing the portion aforesaid ofl the bulb, said means being providedwith means for anchoring the portion oi the bulb inthe opening.

. 18. Ip a vehicle lampgfa reflector having a flange forming a socketfor a portion of a lamp bulb, an electrical terminal attaching..

clip in the form of a ring sleeved upon the flange, and a lug'projectingfrom the fiange holding the ring thereon. y

19. In a vehicle lamp, a reflector, and an Aelectrica-l conductorattaching clip having a iso ring portion detachabl'y connected to thereiector, and a spring Contact arm having a bulb engaging portiondisposed substantially parallel to the ring portion at approximately thecenter thereof.

In testimony whereof I affix my signature.

FRANK L. BAMFORD.

